[Parser] Lambda capture lists can start with '*'

Fixes llvm.org/PR42778

llvm-svn: 367346
diff --git a/clang/lib/Parse/ParseInit.cpp b/clang/lib/Parse/ParseInit.cpp
index 7a45548..769140f 100644
--- a/clang/lib/Parse/ParseInit.cpp
+++ b/clang/lib/Parse/ParseInit.cpp
@@ -45,6 +45,7 @@
 
     case tok::amp:
     case tok::kw_this:
+    case tok::star:
     case tok::identifier:
       // We have to do additional analysis, because these could be the
       // start of a constant expression or a lambda capture list.